CN203621497U - High-voltage loadable sintering die for micro-drill tire body polycrystalline diamond compact (PDC) bit - Google Patents
High-voltage loadable sintering die for micro-drill tire body polycrystalline diamond compact (PDC) bit Download PDFInfo
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- CN203621497U CN203621497U CN201320437137.4U CN201320437137U CN203621497U CN 203621497 U CN203621497 U CN 203621497U CN 201320437137 U CN201320437137 U CN 201320437137U CN 203621497 U CN203621497 U CN 203621497U
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Abstract
The utility model provides a high-voltage loadable sintering die for a micro-drill tire body polycrystalline diamond compact (PDC) bit, which at least comprises a graphite bottom die, a graphite outer die (A), a graphite outer die (B), a clamp ring (A), a clamp ring (B), bolts and nuts. The graphite outer die (A) and the graphite outer die (B) are semi-spherical, and are closely attached together to form a closed spherical cavity. The clamp ring (A) and the clamp ring (B) are semicircular. The graphite outer die (A) and the graphite outer die (B) are clamped between the clamp ring (A) and the clamp ring (B) by means of the clamp ring (A) and the clamp ring (B). The end portions of the clamp ring (A) and the clamp ring (B) are provided with fixing sheets. The bolts and the nuts are arranged on the fixing sheets and are configured to tightly fix the clamp ring (A) and the clamp ring (B) by means of the fixing sheets. According to the technical scheme of the utility model, during the manufacturing process of micro-drill tire body PDC bits by means of the sintering die based on the hot-press approach, different high voltages can be applied onto the sintering die, so that operators can seek the compositions of tire body powder components at higher temperatures and under higher pressures so as to figure out a better formula for the tire body. Therefore, micro-drill tire body PDC bits of a better quality can be manufactured.
Description
Technical field
The utility model relates to a kind of mould, is specially one micro-tyre case PDC composite piece drill-bit sintering mould that can add high pressure, and belongs to drill bit and manufactures field.
Background technology
In order to design and manufacture the tyre case PDC drill of high-quality, can first produce micro-tyre case PDC drill, and then carry out micro-brill test drill bit is evaluated, while manufacturing micro-tyre case PDC drill, pressure sintering is widely used, and pressure sintering need to first produce drill-bit sintering mould.
It is a kind of for micro-brill tyre case PDC drill sintering mold that patent 201220282480.1 provides, by changing the top rake of PDC composite sheet graphite replacement block mounting groove and the angle at bypass angle, make serial graphite bed die, graphite bed die is put into graphite external mold, PDC composite sheet graphite replacement block sticks in the PDC composite sheet graphite replacement block mounting groove on graphite bed die, again carcass powder is packed in PDC composite sheet supporter groove, other powder is packed in graphite external mold, the rigid body processing is pressed on carcass powder, can be placed on the sintering that carries out PDC bit matrix on pressing sintering.After sintering is complete, graphite bed die is taken out from graphite external mold, the graphite bed die of the different parameters more renewing, can repeat said process, makes the miniature tyre case PDC drill of other parameter.But this mould has weak point, while adopting this mould to utilize pressure sintering to make micro-PDC drill bit, conventionally because applied pressure is excessive, graphite jig generation fracture phenomena, causes drill-bit sintering failure, sometimes in order to produce more micro-tyre case PDC drill of high-quality, need to apply larger pressure, make carcass powder more closely knit, therefore existing mould far can not meet the demands, and must seek a kind of micro-PDC Bit Mould that can bear high pressure.
Summary of the invention
The purpose of this utility model is to provide one micro-tyre case PDC drill sintering mold that can add high pressure, while using pressure sintering that this mould is made for microbit, can apply high pressure, carcass powder is pressed more closely knitly, to press and ask better tyre case PDC drill formula, produce the more tyre case PDC drill of high-quality.
Realizing the technical scheme that the utility model above-mentioned purpose adopts is:
One micro-tyre case PDC composite piece drill-bit sintering mould that can add high pressure, at least comprise graphite bed die, graphite external mold A, graphite external mold B, PDC composite sheet graphite replacement block, clamp circle A, clamp circle B, bolt and nut, described graphite external mold A and graphite external mold B are hemispherical, fit tightly the common airtight spherical chamber that formed between the two, it is indoor that described graphite bed die is positioned at spherical cavity, graphite bed die is provided with PDC composite sheet graphite replacement block mounting groove and PDC composite sheet supporter groove, wherein PDC composite sheet graphite replacement block is arranged in PDC composite sheet graphite replacement block mounting groove, described clamp circle A and clamp circle B are semicircle, both are clipped in graphite external mold A and graphite external mold B between the two jointly, and both ends are equipped with stator, bolt and nut are arranged on stator and by stator and make clamp circle A and clamp circle B closely fixing.
Between stator on described clamp circle A and clamp circle B end, be provided with gap.
Micro-tyre case PDC drill sintering mold that what the utility model provided add high pressure, by fastening nut and bolt, clamp circle can firmly be clamped graphite jig, can constrain in the expansion of the graphite jig producing because of high pressure while adopting pressure sintering to manufacture micro-tyre case PDC drill, thereby avoid the phenomenon that mold breakdown occurs and then cause drill bit manufacture failure.
This kind that uses the utility model to provide can bear micro-tyre case PDC drill sintering mold of high pressure, in the time adopting pressure sintering to manufacture micro-tyre case PDC drill, can apply different high pressures, seek the compatibility between carcass powder at higher pressure and temperature, thereby draw better matrix formula, to produce the more tyre case PDC drill of high-quality.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of mould provided by the utility model;
In figure: 1-graphite bed die, 2-PDC composite sheet graphite replacement block mounting groove, 3-PDC composite sheet supporter groove, 4-graphite external mold A, 5-graphite external mold B, 6-stator, 7-clamp circle A, 8-clamp circle B, 9-bolt, 10-nut.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done to detailed specific description.
What the utility model provided add high pressure micro-tyre case PDC composite piece drill-bit sintering mould, by graphite bed die 1, graphite external mold A4, graphite external mold B5, PDC composite sheet graphite replacement block, clamp circle A7, clamp circle B8, bolt 9 and nut 10 form, described graphite external mold A4 and graphite external mold B5 are hemispherical, fit tightly the common airtight spherical chamber that formed between the two, it is indoor that described graphite bed die 1 is positioned at spherical cavity, graphite bed die 1 is provided with PDC composite sheet graphite replacement block mounting groove 2 and PDC composite sheet supporter groove 3, wherein PDC composite sheet graphite replacement block is arranged in PDC composite sheet graphite replacement block mounting groove 2.
Described clamp circle A7 and clamp circle B8 are semicircle, both are clipped in graphite external mold A4 and graphite external mold B between the two jointly, and both ends are equipped with stator 6, bolt 9 and nut 10 are arranged on stator 6 and by stator and make clamp circle A7 and clamp circle B8 closely fixing.Between stator 6 on described clamp circle A7 and clamp circle B8 end, be provided with gap, not closed between two stators 6, thus this design is to be convenient to bolt 9 tighten to graphite external mold A4 and graphite external mold B5 and apply clamping force with nut 10.
Micro-tyre case PDC drill sintering mold that what the utility model provided add high pressure, by fastening nut and bolt, clamp circle can firmly be clamped graphite jig, can constrain in the expansion of the graphite jig producing because of high pressure while adopting pressure sintering to manufacture micro-tyre case PDC drill, thereby avoid the phenomenon that mold breakdown occurs and then cause drill bit manufacture failure.
This kind that uses the utility model to provide can bear micro-tyre case PDC drill sintering mold of high pressure, in the time adopting pressure sintering to manufacture micro-tyre case PDC drill, can apply different high pressures, seek the compatibility between carcass powder at higher pressure and temperature, thereby draw better matrix formula, to produce the more tyre case PDC drill of high-quality.
Claims (2)
1. micro-tyre case PDC composite piece drill-bit sintering mould that can add high pressure, it is characterized in that: at least comprise graphite bed die (1), graphite external mold A(4), graphite external mold B(5), PDC composite sheet graphite replacement block, clamp circle A(7), clamp circle B(8), bolt (9) and nut (10), described graphite external mold A(4) and graphite external mold B(5) be hemispherical, fit tightly the common airtight spherical chamber that formed between the two, it is indoor that described graphite bed die (1) is positioned at spherical cavity, graphite bed die (1) is provided with PDC composite sheet graphite replacement block mounting groove (2) and PDC composite sheet supporter groove (3), wherein PDC composite sheet graphite replacement block is arranged in PDC composite sheet graphite replacement block mounting groove (2), described clamp circle A(7) and clamp circle B(8) be semicircle, both are jointly by graphite external mold A(4) and graphite external mold B be clipped between the two, and both ends are equipped with stator (6), bolt (9) and nut (10) are arranged on stator (6) above and make clamp circle A(7 by stator) and clamp circle B(8) closely fixing.
2. micro-tyre case PDC composite piece drill-bit sintering mould that adds high pressure according to claim 1, is characterized in that: described clamp circle A(7) and clamp circle B(8) gap be provided with between stator (6) on end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437137.4U CN203621497U (en) | 2013-07-22 | 2013-07-22 | High-voltage loadable sintering die for micro-drill tire body polycrystalline diamond compact (PDC) bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437137.4U CN203621497U (en) | 2013-07-22 | 2013-07-22 | High-voltage loadable sintering die for micro-drill tire body polycrystalline diamond compact (PDC) bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203621497U true CN203621497U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320437137.4U Expired - Fee Related CN203621497U (en) | 2013-07-22 | 2013-07-22 | High-voltage loadable sintering die for micro-drill tire body polycrystalline diamond compact (PDC) bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203621497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216689A (en) * | 2016-07-21 | 2016-12-14 | 四川川石金刚石钻头有限公司 | A kind of PDC drill bit carcass preparation technology |
-
2013
- 2013-07-22 CN CN201320437137.4U patent/CN203621497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216689A (en) * | 2016-07-21 | 2016-12-14 | 四川川石金刚石钻头有限公司 | A kind of PDC drill bit carcass preparation technology |
| CN106216689B (en) * | 2016-07-21 | 2018-03-02 | 四川川石金刚石钻头有限公司 | A kind of PDC drill bit carcass preparation technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |